Rotary pump



Jan. 23, 1923.

. @,Mzza .ROTERMUND. TARY PUMP. FILED OcT. 4, 1921.

holding the cylinder in whichl it may ro-v tate, a flange on top of the rotor and cyluseful Rotary Patented Jan. 23, 1923.

errno srans n ai.

l .m i A :WILLIAM F."ROTERMUND, 0F SEATTLE, lIllliSHIll'G'l!0N'.

ROTARY PUMP.

Application filed October 4, 1921. Serial No. 505,354.

To all lwhom t may Concem.' 'L

vto make and use the same.

The invention isa device for pumping -water thru a. pipe, especially designed to feed water into a boiler or for raising water in al well, or may be used as a circulatmg oil pump.` y The object of the invention is to construct a pump which will raise a liquidto a very high head bythe use of very little power.

With these ends in view the invention embodies a cylinder 'with notches on its inner surface, a rotor inside of theI cylinder and of a smallerdiameter, with lugs on its outer surface to fit into the notches on the inner surface of the cylinder, a Acrescentshaped segment between therotor and the cylinder, a shaft through 'the center of the rotor for driving the same, a receptacle for inder," another flange on-,top of the receptacle and rings and keys for locking the receptacle in a tube.

Other features and advantages of the in' vention will appear from the followin description taken in connection with the rawings, wherein Figure 1 is a sectional plan looking on top of the rotor-'and cylinder.

Figure 2 is a cross section on the center line of the pump.4 A

Figure 3 is a side elevation*v with part broken away.

Figure 4 is an exaggerated section showing how the wearing plates on the lugs of the motor are held outward by springs inside of them. f

Figure 5 is an alternate arrangement showing the cylinder with the notches .on the outside with three rotors on the outside instead of one on the inside.

In the ndrawings I have shown my pump installed ina tube 1 mountedupon a shaft 2 which may be drivenl by a pulley 3. On this shaftv is fixedly mounted a rotor 4 in which is akey 5 and on the outside of which 9 slide. the lugs 6 may be placed are lugs 6. These lugs are shaped as shown in Figure 1 with notches 7 in them into which the heels v8 of the wearing plates Between the wearing plates 9 and springs 10 which tend to spring the heels plates9 outward as shown in Figure 4y so that as they wear they will be held outward in order to entirely fill the notches 11 of the cylinder 12 into whichthey Work. Between 8 of the wearing f the outside of the rotor 4 and the inside of the'cylinder 12 is a crescent shaped segment 13 which is held` in a notch 14 in the flange 15. The flange 15 fits directly on top ofthe lrotor 4, and the cylinder 12, and inside of the receptacle 16 which ho-uses the pump. In the edge of the flange 15 is a packing ring 17 and atl the point where the shaft 2 passes thru it there is a stufling box formed by the gland 18 screwing into the recess 19. In the receptacle 16 are grooves 20 in which are balls 21 which constitute ball-bearings between its inner surface and the outer surfaceof the cylinder 12. The flange 22 is held on the upper end of the receptacle 16 by the screws 23 and between this flange and the flange 15 are springs 24 which tend to force the pump members downward so that as they wear against the Abottom of the receptacle 16 the pump memthe rod 33, whose upforced downward, b

(l, to the pin 34 thru the per end is connecte lever 35, by pushing downward lon the end of the lever '35. The lever 35 is pivoted thru 'the pins 36 and the ears 37 to the flange 22. Inthe outer wall of the recep- .tacles 16 are also slots 38 into which the lkeys 32 slide when the lever 35 is raised.

The water is admitted to the pump thru an opening 39 n the bottom vof the receptacle 16, the location of which is shown in Figure 1 and an opening 40shown in dash lines in Figure 1 is 'made in the flange 15 to allow vtween them keys 32 are placed which are i .,Figure so as -to show that it is not necessary to make this an internal pump and also to show that it may be made with more than one rotor, in which case only one 0f them z may'be driven as one Will drive the entire pump thru the cylinder in the center. In this arrangement I have shown my pump mounted in a casing 42 in which the central cylinder 43 is Inounted upon a shaft 44l and the small rotors 45 mounted upon shafts L46'. The Water is admitted thru openings 47 in the bottom of the housing and discharged thru openings 48 indicated by dotted lines .in the top of the housing.

It will be understood that `other changes in the construction caribe made without deartin from the spirit of the invention.

ne o which changes .may be in the use of more or less lugs or recesses in the rotor or cylinder that are shown, or in the proportion of the size of the rotor to the size of the cyl- 1nder, or in the omission of the wearing plates and springs on the lugs of the rotor7 or in a different method of locking the pump in its cylinder. y

The construction Will be readily under.

stood from the foregoing description. To

d. use the device the pump may he installed in a tube as shown and the tube let down until the pump is immersed in Water and then as the power is applied and the rotor rotates it will cause the cylinder 12 to Irotate also; then as the water enters the pump thru the o ening 39 it fills the 4recesses llland as the ugs 6 enter these recesses they force the water out. As the bottom of this pump isi-absolute# ly closed at this point and the only means'of l escape for the water is thru the opening 40 of the housing. i

pass upward. I

l Having thus fully described thehinvention, what I claim as new anddesire to secure by. 'Letters' Patent is :-y

A l. A device of the class described comprising a shaft, a rotor'mounted upon'the shaft, lugs around the circumference of the rotor, Wearing lates on the lugs, springs` under the Wearing plates, a cylinder hel-d concentrically about the shaft', recesses on the interior surface 0f the cylinder, a crescent shaped segment between the rotor and the cylinder, a housing surrounding the cylinder with its bottom closed, a flange on top of the housing, another flange on top of the rotor, a stuffing box in"the` flange on top of lthe rotor, springs between the flange` on top of the rotor and the flange of the housing, rings around the outside of Vthe housing, keys for forcing these rings outward and locking the .housing in a tube, a leYerfOroperating the keys, an inlet i-n the bottom of .the housing, and an outlet thru both of the flanges ontop 2. A device of the class describedl comprising a shaft, av rotor mounted upon the shaft, lugs on the exterior'surface of the rotor, Wearing plates on the lugs, springs under the wearing plates, a vcylinder held concentrically around the shaft, recesses on the interior surfacesiof the cylinder, a cresl cent shaped segmenti, between the rotor and the cylinder, a housing surrounding the cylinder, a flange on top of thel rotor, means for pressing downward on this flange, mefa'ns, for

lockingthehousing. in a tube, an opening inthe bottom of the housing, a'nopening m the flange on top of the rotor at a point where the lugs on the rotor enterV the recesses of the cylinder, and an opening in the top of-` the housing thru which the liquid may hel discharged. v

WILLIAM Fl ROTERMUND. 

